M4 J3-12 smart motorway

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M4 smart motorway work closure update for the week commencing 29th April 2019

M4 junctions 6 at Slough/Windsor to 10 at Wokingham, Berkshire: upgrade to smart motorway

Work to improve journeys by converting the M4 into a smart motorway between Junctions 3 at Hayes and Junction 12 at Theale continues this week. 24 hour narrow lanes and a 50mph speed restriction are in place for sections of this stretch of the M4. Carriageway and slip road closures are planned as follows, all fully closed overnight between approximately 10pm and 5am (traffic management will usually be rolled out from 9pm and taken off by 6am).

We have the following full closures booked for the week commencing 29th April 2019:

  • The M4 westbound carriageway between junctions 10 (Wokingham) and 11 (Reading) will be fully closed overnight on Monday 29th April. Clearly signed diversions will be in place utilising the B3270, A3290 and the A329M.
  • The M4 eastbound carriageway between junctions 10 (Wokingham) and 8/9 (Maidenhead) will be fully closed overnight on Tuesday 30th April. Clearly signed diversions will be in place utilising the A404M, A4, A3290 and the A329M.
  • The M4 eastbound carriageway between junctions 8/9 (Maidenhead) and 6 (Slough/Windsor) will be fully closed overnight on Wednesday 1st May. Clearly signed diversions will be in place utilising the westbound M4, A308M, A308 and the A332.
  • No closures are planned over the bank holiday weekend.
  • In addition there are M4 entry and exit slip road closures this week as follows, with signed diversions in place. Keep an eye out for updates on the network:

  • Junction 10 – Slip 4 (eastbound entry from A329M southbound) will be closed overnight on 29th April.
  • Junction 10 – Slip 6 (westbound entry from the A329M southbound) will be closed overnight on 30th April and 1st May.
  • Junction 10 – Slip 5 (eastbound entry from A329M northbound) will be closed overnight on 2nd May.
  • In the event of poor weather conditions or other issues out of our control, planned work may be postponed at short notice. Contingency bookings are also in place, but these are only used if previously planned work is delayed. If work completes on an earlier day the motorway may not close, or if work completes ahead of schedule the motorway may reopen early. Signage will be in place on the network to notify of closures and diversions.

    Posted on 25th April 2019

    by M4 J3 to 12 Communications Team